69904542 has 16 divisors (see below), whose sum is σ = 140749200. Its totient is φ = 23144832.

The previous prime is 69904537. The next prime is 69904543. The reversal of 69904542 is 24540996.

It is a self number, because there is not a number n which added to its sum of digits gives 69904542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69904543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38203 + ... + 39990.

It is an arithmetic number, because the mean of its divisors is an integer number (8796825).

Almost surely, 2^69904542 is an apocalyptic number.

69904542 is an abundant number, since it is smaller than the sum of its proper divisors (70844658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69904542 is a wasteful number, since it uses less digits than its factorization.

69904542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78347.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 69904542 is about 8360.8936125273. The cubic root of 69904542 is about 411.9411068300.

The spelling of 69904542 in words is "sixty-nine million, nine hundred four thousand, five hundred forty-two".